John Hagel or John Hagel III is an author and former consultant who specializes in the intersection of business strategy and information technology. In 2007, Hagel, along with John Seely Brown and Lang Davison, founded the Deloitte Center for Edge Innovation. Hagel is also involved with a number of other organizations, including the World Economic Forum, Innovation Exchange with John Seely Brown and Henry Chesbrough, the International Academy of Management, and the Aspen Institute. He is credited with inventing the term "infomediary" in his book, NetWorth. with Marc Singer, published by the Harvard Business School Press in 1999.